NCP1341: 准谐振控制器,高电压,具有带功率偏移模式 (PEM) 的谷锁闭开关功能
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NCP1341 是一款高度集成的准谐振反激控制器,适用于设计高性能离线功率转换器。NCP1341 具有集成的有源 X2 电容器放电功能,可以实现低于 30 mW 的无负载功耗。准谐振电流模式反激级功能具有专属的谷锁闭电路,确保了稳定的谷开关。此系统可在低至第 6 个谷的情况下运行,并转换为频率折回模式以降低开关损耗。随着负载进一步降低,NCP1341 进入静音跳过模式来管理功率传递。NCP1341 集成了功率偏移模式 (PEM),可最大程度减小需要高瞬变负载功能设计中的变压器尺寸。如果不要求瞬变负载功能,NCP1340 则与不带 PEM 时的性能和功能相同。为了帮助确保转换器耐用性,NCP1341 实施了若干关键保护功能,如内部欠电压检测、在任何输入电压下保证恒定最大输出功率的非功耗过功率保护 (OPP)、通过专门引脚实现的锁存过电压和 NTC 就绪高温保护,以及线路去除检测,可在去除线路时对 X2 电容器进行安全放电。
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评估/开发工具信息
产品 | 状况 | Compliance | 简短说明 | 行动 | |
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NCP1341GEVB | Active |
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High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board. |
Availability & Samples
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Specifications
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Interactive Block Diagram
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外形 |
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NCP1341A1D1R2G | Active |
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NCP1341 | SOIC-9 NB | 751BP | 1 | 260 | Tape and Reel | 2500 | $0.4133
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NCP1341B1D1R2G | Active |
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NCP1341 | SOIC-9 NB | 751BP | 1 | 260 | Tape and Reel | 2500 | $0.4284 | ||||||||
NCP1341B1DR2G | Active |
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NCP1341 | SOIC-8 | 751-07 | 1 | 260 | Tape and Reel | 2500 | $0.4211 | ||||||||
NCP1341B4D1R2G | Active |
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NCP1341 | SOIC-9 NB | 751BP | 1 | 260 | Tape and Reel | 2500 | $0.4133
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NCP1341B5D1R2G |
Active ![]() |
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NCP1341 | SOIC-9 NB | 751BP | 1 | 260 | Tape and Reel | 2500 | $0.4133
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市场订货至交货的时间(周) | : | 13 to 16 |
市场订货至交货的时间(周) | : | Contact Factory |
ON Semiconductor (2020-09-02 00:00) | : | 35,000 |
市场订货至交货的时间(周) | : | 4 to 8 |
ON Semiconductor (2020-09-02 00:00) | : | 30,000 |
市场订货至交货的时间(周) | : | Contact Factory |
市场订货至交货的时间(周) | : | 17 to 20 |
Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
fsw Typ (kHz)
Stand-by Mode
UVLO (V)
Short Circuit Protection
Latch
Soft Start
VCC Max (V)
Drive Cap. (mA)
Package Type
NCP1341A1D1R2G
$0.4133
Pb
A
H
P
Active
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
SOIC-9 NB
NCP1341B1D1R2G
$0.4284
Pb
A
H
P
Active
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
NCP1341B1DR2G
$0.4211
Pb
A
H
P
Active
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-8
NCP1341B4D1R2G
$0.4133
Pb
A
H
P
Active
Flyback
Current Mode
Variable
Yes
9
Yes
No
Yes
30
500 / 800
SOIC-9 NB
Application
Diagram - Block
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